[  515.777855] bond0: (slave eth0): making interface the new active one
[  515.778002] bond0: (slave eth0): Enslaving as an active interface with an up link
[  519.958937] bond0: (slave eth0): Releasing backup interface
[  520.033678] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.182138] bond0: (slave eth0): Releasing backup interface
[  524.208100] bond0 (unregistering): Released all slaves